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NPFC - FF-S-86

SCREW, CAP, SOCKET-HEAD

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Organization: NPFC
Publication Date: 29 May 1987
Status: active
Page Count: 29
scope:

This specification covers socket-head cap screws with optional hexagon and spline socket configurations.

Screws furnished under this specification shall be of the following types (see 6.2 and figure 8). Screws shall be classified according to size by the nominal body diameter as specified in ANSI/ASME B18.3.

1/ Type I -Hexagon socket, cylindrical head, 1936 series. 1/ Type III -Internal multiple spline socket, cylindrical head, 1936 series. Type IV -Hexagon socket, flat countersunk head, 82° included angle. Type V -Internal multiple spline socket, flat countersunk head, 82°included angle. Type VI -Hexagon socket, cylindrical head, 1960 series. Type VII -Internal multiple spline socket, cylindrical head, 1960 series. Type VIII -Hexagon socket, button head. Type IX -Internal multiple spline socket, button head.

intended Use:

This specification covers externally threaded fasteners, which are designed to be driven into tapped holes with a hexagon or spline key or setter, in applications which require high strength... View More

Document History

FF-S-86H
June 7, 2021
FEDERAL SPECIFICATION SCREW, CAP, SOCKET-HEAD
Scope. This specification covers socket-head cap screws with multiple head configurations utilizing alloy steels (Grades 4137, 4140, 4142, 4145, 4340, 8740 and 5137M), corrosion-resistant steels...
FF-S-86
January 27, 2021
SCREW, CAP, SOCKET-HEAD
This specification covers socket-head cap screws with multiple head configurations utilizing alloy steels (Grades 4037, 4137, 4140, 4142, 4145, 4340, 8740 and 5137M), corrosion-resistant steels...
FF-S-86
January 7, 2020
SCREW, CAP, SOCKET-HEAD
Scope. This specification covers socket-head cap screws with multiple head configurations utilizing alloy steels (Grades 4137, 4140, 4142, 4145, 4340, 8740 and 5137M), corrosion-resistant steels...
FF-S-86
February 22, 2002
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
December 4, 2000
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
January 16, 1991
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
July 9, 1990
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
September 29, 1989
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
August 5, 1987
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
May 29, 1987
SCREW, CAP, SOCKET-HEAD
This specification covers socket-head cap screws with optional hexagon and spline socket configurations. Screws furnished under this specification shall be of the following types (see 6.2 and figure...
FF-S-86
November 6, 1972
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
June 15, 1971
SCREW, CAP, SOCKET-HEAD
This specification covers externally treaded fasteners, which are designed to be driven into tapped holes with a hexagon or spline key or setter, in applications which require high strength precision...
FF-S-86
December 31, 1986
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
August 6, 1968
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
October 17, 1967
SCREW, CAP, SOCKET-HEAD
This specification covers externally threaded fasteners, which are designed to be driven into tapped holes with a hexagon or spline, key or setter, in applications which require high strength...
FF-S-86
July 19, 1965
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
April 23, 1964
SCREW, CAP, SOCKET-HEAD
This specification covers externally threaded fasteners, which are designed to be driven into tapped holes by means of a hexagon or spline key or setter, in applications which require high strength...
FF-S-86
May 16, 1961
SCREW, CAP, SOCKET-HEAD
This specification covers externally threaded fasteners, which are designed to be driven into tapped holes by means of a hexagon or spline key or setter in applications which require high strength...
FF-S-86 (1)
October 15, 1956
SCREW, CAP, SOCKET-HEAD
A description is not available for this item.
FF-S-86
November 4, 1953
SCREW, CAP, SOCKET-HEAD
This specification shall be applicable to externally threaded fasteners which are designed to be driven into tapped holes by means of internal wrenches (or keys), in applications which require...
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References

This document references:
ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay)
Published by ASME on January 1, 2019
This Standard is concerned with the geometric irregularities of surfaces. It defines surface texture and its constituents: roughness, waviness, and lay. It also defines parameters for specifying...
This document references:
MIL-DTL-16232 - PHOSPHATE COATING, HEAVY, MANGANESE OR ZINC BASE
Published by NPFC on March 26, 2021
Scope. This specification covers two types of heavy phosphate coating for ferrous metals, applied by immersion. The coatings consist of a manganese phosphate or zinc phosphate base and, when...
This document references:
ASME B1.1 - Unified Inch Screw Threads (UN and UNR Thread Form)
Published by ASME on January 1, 2019
This Standard specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules,...
This document references:
QQ-N-286 - NICKEL-COPPER-ALUMINUM ALLOY, WROUGHT (UNS N05500)
Published by NPFC on December 5, 1980
A description is not available for this item.
This document references:
ASME B1.3 - Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
Published by ASME on October 12, 2007
This Standard presents screw thread gaging systems suitable for determining the acceptability of UN, UNR, UNJ, M, and MJ screw threads on externally and internally threaded products. It establishes...
View Less
View All

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